Key Engineering Materials Vols. 315-316

Abstract: This paper analyzes Acoustic Emission (AE) signals in accurate-grinding machining, and influencing factors related in the process. It is indicated that there is favorable corresponding relationship between AE signals with different characteristic parameters and accurate-grinding status, which can be used to monitor the accurate-grinding machining and grinding quality.

Abstract: In order to satisfy the requirement of advanced manufacturing equipments with high speed and high precision, two planar parallel mechanisms have been developed. Based on these mechanisms, firstly, in consideration with the velocity and the precision of the end-effector together, the dimension optimization design is performed based on conditioning index and the precision characteristics. Then a disturbance observer is designed for the purpose of restraining load disturbance in the direct-drive system, and the experimental results show that load disturbance can be effectively restrained by the disturbance observer.